Cycadopteris.
Zigno[1460] founded the genus Cycadopteris on Italian Jurassic impressions regarded by Schimper as indistinguishable from Lomatopteris. As Solms-Laubach[1461] points out, the supposed sori of Cycadopteris described by Zigno are not convincing. There appear to be no satisfactory reasons for separating Cycadopteris from Lomatopteris, nor do the fronds described under these names exhibit any important differences from Thinnfeldia.